He was born in Volhynia about 1540 from a nobleBelarusians family in the region of Minsk county. He probably studied in a Jesuit college in Vilnius where he worked as clerk for the prince Bogush Koretsky, a voivode of Vilnius. He later entered in the monastery of the Ascension in Minsk of which he became archimandrite in 1579. In 1589 Patriarch Jeremias II of Constantinople visited the Polish–Lithuanian Commonwealth on his return trip to Constantinople and, in agreement with king Sigismund III Vasa, deposed the Metropolitan, probably because he was a digamy and he tolerated this use. King Sigismund, under the advice of such magnates like voivode of Navahrudak Teodor Skumin-Tyszkiewicz and voivode of KievKonstanty Ostrogski, appointed Michel Rohoza as Metropolitan of Kiev, who was consecrated by Patriarch of ConstantinopleJeremias II in August 1589 in Vilnius. As appointed Metropolitan, he started the reform of the Church, mainly by means of synods as the one summoned in 1590. His targets were reforming the mores of the clergy and a reduction of the meddling of lay people in the life of the Church and on monasteries. His attempts of reform were anyway opposed particularly from the stauropegics and the impossibility to carry on the reforms was one of the reasons for looking to Rome. Since 1590 Metropolitan of Kiev, Rohoza subscribed with all bishops a document soliciting a union with Catholic Church, conditioning this union of faith that Byzantine rite, liturgical practices and canon law would be preserved. This will was formalized in document on 2 December 1594 and again in two petitions, one to the king and one to Pope Clement VIII, undersigned in Brest on 12 June 1595. The Union of Brest was formally proclaimed 8 October 1596 always in Brest. Even if Rohoza signed the union, he later tried to hinder its action, but without results. Rohoza died between June and August 1599. He was succeeded by the bishop of Volodymyr, Hypatius Pociej, a fierce supporter of the union. Not all the Ukrainians supported the union, and twenty years later, in 1620 the Patriarch of Jerusalem re-established a Kievan Metropolia under his own jurisdiction, which first Metropolitan was Yov Boretsky, so duplicating the hierarchy.
